手机的音频电路原理设计资料VIP免费

1 摘要本论文先分别论述了手机用麦克、耳机、蓝牙送话、受话、录音的原理，还论述了播放MP3、MIDI 音、录音的原理，先从大体上分析了手机的音频原理。接着以 MOTO 的经典机型 E680 为例，详细分析了手机的音频电路原理。最后是关于手机音频的维修分析。通过这次论文，在分析原理的基础上指导维修。关键字：语音总线PCAP 集成芯片龙珠（主 CPU） NEP（从 CPU）Abstract This paper first describes respectively phone with Mike, headphone, Bluetooth sent, the subject, recording the principle, also outlined the play MP3, MIDI Music, the recording of principle, with the general on the phone audio principle. MOTO then to the classic models E680 for example, gave a detailed account of the phone audio circuit. Finally, with regard to the maintenance of cell phone audio analysis. Keywords : Speech PCAP IC Bus 2 目录第一章绪论 ..................................................................................................................................................... 3 第二章手机音频原理论述 .............................................................................................................................. 3 2．1 主 MIC （麦克）的打电话原理............................................................................................................... 4 2．2 主听筒接电话原理 ................................................................................................................................... 5 2．3 普通录音原理........................................................................................................................................... 5 2．4 播放普通录音原理 .................................................................................................................................. 6 2．5 耳机送话原理........................................................................................................................................... 6 2．6 耳机受...